Summary
To print out the contents of a file all at once inside your terminal, use the cat command:
cat my-file
To print out the contents of the file in a scrollable format using your terminal, use the less command:
less my-file
You can use the Up and Down arrow keys to scroll through the contents using less. To close the file, press the Q key.
Details
Options
You can use the -n flag with the cat command to print out line numbers for each line.
cat -n my-file
Exercises
Try the following commands in your project folder:
cat index.html
less index.html
References
Command Line Primer on the Apple Developer Archive (see the section called Frequently Used Commands)